The influence of high temperature on the microstructure properties of Ni-based superalloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00434712" target="_blank" >RIV/68081723:_____/14:00434712 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The influence of high temperature on the microstructure properties of Ni-based superalloy

Original language description

The PM Ni-15Cr-18Co-4Al-3.5Ti-5Mo alloy is a high temperature resistant superalloy with high mechanical, chemical and thermal properties. This makes the material ideal for high performance engine parts, high temperature resistant machine parts, etc. Thissuperalloy was used as grips of the creep machine. The material was exposed at 1100 ° C for about 10 days at 10 MPa stress. During the creep test occurred unacceptable creep deformation of grips as well as severe surface oxidation with scales peeling off. The three types of PM samples have been studied: initial, heat treated (annealing - 10 min/1200 °C) and after using as a part of the equipment of the creep machine during the creep test. Phase (CoNi2)Ti particles preferentially created at the grain boundaries of the samples after performing creep tests. As a result of this process, grain boundaries are deprived of Ti. Moreover, its presence at the grain boundaries caused reduction of the hardness of the material. The Vickers hardness

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Powder Metallurgy Progress

ISSN

1335-8987

e-ISSN

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Volume of the periodical

14

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

9

Pages from-to

190-198

UT code for WoS article

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EID of the result in the Scopus database

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